Teacher Retirement System of Texas
MIR icon

Teacher Retirement System of Texas’s Mirion Technologies MIR Stock Holding History

Teacher Retirement System of Texas’s Portfolio MIR Stock Details MIR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-27,885
Closed -$649K – 1855
2025
Q3 		$649K Sell
27,885
-4,456
-14% -$96.3K ﹤0.01% 1418
2025
Q2 		$696K Buy
32,341
+2,776
+9% +$47.9K ﹤0.01% 1397
2025
Q1 		$429K Buy
29,565
+13,733
+87% +$216K ﹤0.01% 1584
2024
Q4 		$276K Sell
15,832
-26,386
-62% -$409K ﹤0.01% 1414
2024
Q3 		$467K Sell
42,218
-4,759
-10% -$50.1K ﹤0.01% 1220
2024
Q2 		$505K Buy
46,977
+9,931
+27% +$106K ﹤0.01% 1191
2024
Q1 		$421K Buy
+37,046
New +$371K ﹤0.01% 1334
2023
Q4 		– Sell
-13,472
Closed -$101K – 1873
2023
Q3 		$101K Buy
13,472
+1,140
+9% +$8.98K ﹤0.01% 1817
2023
Q2 		$104K Sell
12,332
-2,135
-15% -$17.3K ﹤0.01% 1860
2023
Q1 		$124K Sell
14,467
-65
-0.4% -$516 ﹤0.01% 1950
2022
Q4 		$96K Sell
14,532
-4,184
-22% -$28.2K ﹤0.01% 1968
2022
Q3 		$140K Sell
18,716
-1,585
-8% -$11.2K ﹤0.01% 1999
2022
Q2 		$117K Buy
+20,301
New +$149K ﹤0.01% 1801

Other funds holding MIR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
CLG
Cooperman Leon G $3.05B AUM 42.78% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Teacher Retirement System of Texas's MIR Position: Q4 2025 in Review

Teacher Retirement System of Texas sold out of Mirion Technologies (MIR) in Q4 2025, closing a stake of 27,885 shares — an estimated $649K sold.

Teacher Retirement System of Texas first reported a position in MIR in Q2 2022 and held it in 13 quarters. The position peaked at $696K in Q2 2025. 366 funds tracked by Wall St. Rank hold MIR as of Q4 2025.

  • Teacher Retirement System of Texas reported no remaining Mirion Technologies position as of Q4 2025 after selling out during the quarter.
  • Teacher Retirement System of Texas sold 27,885 Mirion Technologies shares in Q4 2025, an estimated $649K.
  • Teacher Retirement System of Texas first reported a position in Mirion Technologies in Q2 2022 and held it in 13 quarters.
  • Teacher Retirement System of Texas's Mirion Technologies position peaked at $696K in Q2 2025.
  • 366 funds tracked by Wall St. Rank held Mirion Technologies as of Q4 2025.

Based on Teacher Retirement System of Texas's 13F filing for Q4 2025, filed 28 Jan 2026.